Lock



R. MARPLE Nov. l0, 1942.

Filed oct. 2o, 195s' .f g 7a 434 /ZZ t INVENTOR Zar/Ze.

` TORNE xs.

Patented Nov. 10, 1942 2,301,558 Loon Rollo Marple, Jackson, Mich.,assigner to Hancock Manufacturing Company, Jackson, Mich., a

corporation of Michigan Application october zo, 193s, serial No. 235,983

(C1. 2st- 164) 8 Claims.

The present invention relates to locking'devices for closures, and inthe specific embodiment herein disclosed, is directed particularly tothe provision of improved locking devices for automobile doors.

The principal objects of the present invention are to provide improvedlocking devices particularly adapted for but not limited to use inconnection With vehicle doors; to provide such locking devices which aresimple in construction, economical of manufacture, and which arereliable and efcient in operation; to provide such devices embodyingimproved constructions of locking devices for preventing releasingmovements of the bolt; to provide such devices embodying a boltselectively releasable from engaging relation to an associated keeper, amember movably associated with the lock casing and responsive to eitheran inside or an outside handle for releasing the bolt, and locking meansselectively engageable with the just-mentioned member for preventingoperation of the bolt by either the inside or the outside handle; toprovide such devices wherein a releasing movement of the boit,occasioned, for example, by a closing movement of the door, serves torelease the locking device from locking position; and to provide suchdevices embodying improved supporting and cushioning relationshipbetween the movable parts of the lock.

With the above as Well as other and more detailed objects in view, whichappear in the following description and in the appended claims,preferred but illustrative embodiments of the invention are shown in theaccompanying drawing, throughout the several views of whichcorresponding reference characters are used to designate correspondingparts, and in which:

Figure 1 is a view in elevation of one embodiment of the invention;

Fig. 2 is a view in horizontal section, taken along the line 2'-2 ofFig. 1;

Fig. 3 is a view in elevation of a modied embodiment of the invention;

Fig. 4 is a view in horizontal section, taken along the line 4-4 of Fig.3; and

Fig. 5 is a view in vertical section, taken along the line 5 5 of Fig.3;

Referring first to the embodiment of Figs. 1 and 2, the thereindescribed door lock comprises a case plate ill, a bolt I2, a retractingmember I4, an outside operated rollback member I6, an inside operatedlink I8 which may, as will be appreciated, be connected to the usualinside handle 55 ltherefor in the case plate flange 24.

(notshown), and a selectively operable locking device designated as awhole as 20.

The bolt I2 is illustrated herein as being of the slidable type, havinga thickened nose 22, which projects through an opening provided thereforin the flange 24 of the case plate. It will be understood that in themore generic aspects of the invention bolt actions of other types may beused, such, for example, as those disclosed in applicants copendingapplication Serial No. 235,982, led October 20, 1938, and in applicantscopending application Serial No. 236,135, filed October 21, 1938.

Continuing with the description of the present embodiment, a usual coilspring 26, which is secured to the base 28 of the case plate, bearsagainst the rear face 30 of the bolt head 22, and so continuously urgesthe latter to the left, as viewed in Fig. 1. to a fully projectedposition, in which the nose 22 of the bolt is adapted to cooperate withasuitable lock keeper (not shown). The body of the bolt I2, which ispreferably formed as a. metal stamping suitably secured to the head 22,extends `rearwardly from the head 22, and lies generally parallel to butin spaced relation to the base 2,8 of the case plate I0. Adjacent itsrear end, the bolt I2 is provided with a longitudinally extending slot32, which receives a guide pin 34. One end of the guide pin 34 isriveted to the base of the case plate, and the other end thereof iscorrespondingly secured to a supplemental casing member 36. The guidepin 34 is thus xed in position relative to the case plate, and acts togive guiding support to the rear end of the bolt l2 during the slidingmovements thereof. Additional guiding support for the bolt is providedby the opening provided The bolt is also provided with a downwardlypositioned laterally projecting foot 38, which cooperates, ashereinafter described, with a rubber buffer 40 carried by the previouslymentioned actuating slide I4 to effect retracting movements of the bolt.i

The outside rollback, designated as a whole as I6, is constructed inaccordance with the arrangement disclosed and claimed in Moore Patent1,895,893, assigned to the same assignee as the present application, andcomprises two rollback elements 42 and 44, each whereof is provided witha squared opening to receive the usual squared spindle 46,` to which theoutside handle may be connected. The squared opening in the rollbackelements 42 and 44 are slightly -angularly offset with respect to eachother. The

rollback element 44 is provided with a nose 44a, which is positioned toabut the ange 24. The rollback element 42 is provided with a nose 48,which is disposed to be normally engaged by a foot 58 formed on theslide I4, and urged thereby in a counterclockwise direction of rotationas viewed in Fig. 1. With this relation, it will be appreciated that therollback elements 42 and 44 have a scissor action upon the spindle 45,and so wedgingly hold the latter against rattling within the squaredopenings. The rollback element 42 is also provided with a downwardlyextending foot 52, which is disposed to cooperate with a key controlledlocking slide, such as 54,

to enable the door to be locked from the outside.

The key slide 54 may be conventionally arranged to be selectively movedupwardly from the retracted position shown in dotted lines to a positionin blocking relation to the foot 52. The actuating parts for the keyslide 54 may be conventional and are not shown herein. The rollbackelements 42 and'44 are provided lwith axially extending projections 42aand r'4412, by which. they Yare rotatably mounted in the base 28 of thecase plate and in a corresponding opening provided in a supplementalcasing member '56, which is secured to the base of the caseplateadjacent the lower edge thereof.

The slide I4 comprises a longitudinally extending body, which ispositioned between the rearwardly extending bolt body and the base 28 ofthe'case plate, and is guided thereon by a shoulder 58 secured to thebase of the case plate and the previously mentioned guide pin 34. Theguide pin 34 rides kin a slot 60 formed in the slide I4. The slide I4 isalso provided with a laterally turned foot 62, which acts as a back-upsupport for the previously mentioned rubber block 48. The block 48 issecured to the slide I4 vby a rivet 64 or equivalent means.

Theslide I4 serves to Inormally urge the outside rollback element 42 inacounter-clockwise direction, as previously mentioned, and for thispurpose the slide I4 is provided with a coil spring 66, ythe free endwhereof bears against a projection 68 which extends upwardly from thebody of the slide.

In addition, to adapt it for cooperation with the previously mentionedlocking device 20, the slide I4 is provided with -an additional upwardlyprojecting abutment 18.

rIn accordance with the present embodiment, the locking device 20comprises a roller 12 the main body portion whereof is positioned forvertical sliding movement between the supplemental casing member 36 andthe base 28 of the case plate. The reduced ends, such as 14, of theAroller V'i2 ride in elongated slots such as 'I6 4formed in the casingmember 36 and in the'base 28. The roller i2 is also provided with abore, within which the laterally turned endof a control rod 'I8 issecured. With this relation, it will be understood that the controlfrod'18may be suitably controlled, as by means of a button (not shown)available from within the'associated vehicle, so as to move the lockingroller 12 from the lower or locking position shown'inlFig. l, to araised position,.in which it is out of locking relation to the abutment'I0 onfthe slide I4. In order to yieldably retain the lockingbuttoin 'I2in either the locked or the'unlocked position, a spring 80 is provided,thefree end -whereof projects into the path of movement of the button I2at-an intermediate point thereof. -The' spring thus acts to eitheryieldablyfretain thev button 12 in the lower locked position or in araised unlocked position.

Considering the operation of the device as a whole, it will beappreciated that the parts are shown in the normal locked positionthereof, with the bolt projected, and with the locking roller I2 in thelower or locked condition. With the parts thus positioned, the roller'I2 lies in blocking relation to the projection 10, so that the slide I4is prevented from being moved in a retracting or rightward direction.Thus, both the outside rollback I6 and the inside link I8 areineffective -to cause a retracting movement of the bolt I2.

Assuming it is desired to release the locking device, and render theoutside and inside handles Veffective for operation, the control rod ESmay be drawn upwardly, moving the roller 'I2 from the locking positionshown in Fig. 1 to the upper or unlocked position in which it is out ofblocking relation to the path of movement of the abutment 'IIL With thelocking device thus released, the inside link I8, for example, may beactuated to the right, as viewed in Fig. l, in which event the roller82, secured at the end thereof abuts the end of the slot 84 formed inthe end of the slide I4, and causesa corresponding movement to the rightofthe slide I4. The movement to the right of the slide I4 viscommunicated to the bolt 22 by means of the rubber buier 48, which bearsagainst the previously mentioned foot 38 formed on the lower part ofthe-bolt body. A corresponding action may be eiected `by rotating theoutsiderollback I6 in a clockwise direction by a corresponding rotationof the spindle 46. The clockwise rotation of the outside rollback I6causes the nose 48 thereof to bear against the foot 58 formed on theslide and force the latter to the right. It will be seen, accordingly,that `upon release of the .locking device 20, either the outsiderollback or the inside link may be actuated `to move the slide I4 to theright and -cause a corresponding rightward or retracting movement of thebolt 22.

Assuming the inside handle or the outside rollback is released, as thecase may be, the coil springIG, Aassociated with the slide I4, becomeseffective ',to force the latter to the left to its illustrated normalposition, thus either returning the link I8 to the normal position orreturn- .ing the yrollbackI to the normal position. AssumingthatthenosefZZoflthe boltis notblocked lfrom movementby the lock-keeper(not shown) .,buiTerAU, assists the -restoring'movementof the slide I4.

It will be notedthatthe bolt I2 may be retracted independently oflth'epositi'onof the slide ,I-4, by `the application of pressure to the nosethereof, such for example as results from a normal closing movement.ofa-door. Under such conditions, the boltlIZmoves to theright againstthe force of the compression spring '12R-moving `the foot 38-to theright awaylfrom the rubber buffer 40. Under these conditions, the slideI4 remains in lits normal position, Vin which it is Veffectivefto holdthe outside rollback I6 in wedging relation to the spindle 46.

A feature ofthe present 4invention resides in "arranging thefbolt sothata retracting-movement Ythereof -under the just-mentioned conditions,

serves to move the locking device from the locking position shown inFig. 1 to the unlocked position thereof. This feature is of importanceprimarily in that it prevents the operator of the associated vehiclefrom inadvertently setting the locking device 20 into locking positionwhile the door is open and thereafter closing the door, leaving both theinside and outside handles locked against actuation. Assuming that thelocking device 20 is set into operative position while the bolt isprojected, and that the bolt is thereafter retracted as by closingmovement of the door, it will be noted that the angled face 86 of thebolt in moving to the right, engages the lower side of the roller 12, sothat continued movement of the bolt to the right cams the roller 12upwardly to the unlocked position thereof, in which unlocked position itis yieldably retained by the detent spring 80.

In the rmodified embodiment of the invention shown in Figs. 3, 4 and 5,the bolt |00 is provided with a thickened nose |02, and a rearwardly anddownwardly oiset body portion |04. The nose of the bolt is guided in theopening provided therefor in the flange |06 of the case plate |08, and

the body |04 thereof is guided by a pin ||0, which rides in an elongatedslot ||2 provided in the bolt body. A coil spring ||4 is provided, thefree end whereof bears against the shoulder constituted by the rear edge||6 of the bolt head, I

and so continuously urges the bolt |00 to the leftward or to the fullyprojected position. The rear end I1 of the bolt body is extendedupwardly and is provided with a laterally turned foot ||8, whichnormally abuts the outer end of a rubber buffer |20, which is held inplace between the base |22 of the case plate and a supplemental casingmember |24, which is secured to the base of the case plate. Thepreviously mentioned pin ||0 is, of course, secured between thesupplemental casing member |24 and the base |22 of the case plate.

The retracting slide |30, which corresponds generally to the previouslydescribed slide |4 and responds to the outside rollback mechanism |32and the inside link |34 in a similar manner, is provided with alongitudinally extending body, which lies adjacent the case plate base|22. The slide |30, upon being moved to the right, causes correspondingrightward movement of the bolt |00 through the engagement of a shoulder|36 formed thereon with an inwardly turned foot |38 formed on the bolt|00. The slide is guided relative to the casing |28 by means of theguide pin ||0 which rides in a corresponding slot formed therein, andalso by a tongue |40, which extends between the body of a supplementalcasing member |42 and the base |22 of the case plate. As in the case ofthe above-described embodiment also, the casing member |42 which isconventionally secured to the case plate, also acts as a bearing supportfor the outside operated rollback element |44. 'I'he slide |30 isprovided with a coil spring |46 which acts against the projection |48thereon which extends downwardly therefrom, and so continuously urgesthe slide |30 to the left to the position shown in Fig. 3. To adapt itfor cooperation with the locking device, designated as a whole as |50,the slide |30 is provided with an upwardly extending projection |52.

In the present instance, the locking device |50 comprises a slide |54,which is guided with respect to the base |22 of the casing by means of aclip |55, which embraces the body of the slide,

and by the locking pin |58. The clip |55 is secured to the case plate bya guide pin |56, and is received in a slot |51 formed in the slide. Thepin |58 has a reduced portion which rides in an elongated slot |60formed in the base |22 of the case plate. The lower end of the slide |54is disposed, when in the lower or locking position thereof, to lie inblocking relation to the projection |52 on the slide |30.

In order to yieldably hold the slide |54 in either the lower lockedposition or a raised unlocked position, between which positions it maybe moved by the control rod |64, the previously mentioned clip |56 isprovided with a downwardly extending spring tongue |66, the lower endwhereof is provided with an inwardly projecting rounded boss |68. Theboss |68 is disposed to be releasably received in either the guide slot|10 or a lower opening |12, both of which are formed in the slide |54.When the slide |54 is in the lower locked position, the boss |68 isreceived in the slot |10. When, however, the control rod |64 is actuatedin an upward direction, the boss |68 is forced out of the slot |10 and,when the slide |54 reaches its upper position, snaps into the loweropening |12 formed in the slide. As in the previous embodiment, the bodyof the bolt is provided with an angled surface |14, which bears againstthe head of the pin |58 and acts to cam the pin |58 and the slide |54from the lower locking position to an upper unlocked position thereof,in response to a retracting movement of the bolt |00.

In all other respects except those described, both as to structure andoperation, the embodiment of Figs. 3, 4 and 5 may correspond to that oithe embodiment of Figs, 1 and 2. It is thought, therefore, that nofurther descrip- .tion of the embodiment of Figs. 3, 4 and 5 is needed.

Although specic embodiments of the present invention have been describedin detail, it will be appreciated that such embodiments are illustrativeonly and that various modifications in the form, number and arrangementof the parts may be made within the spirit and scope of the presentinvention.

What is claimed is:

1. In a latch for association with a closure member and a cooperatingmember, the combination of a bolt carried by one of the members andreleasably engageable with a keeper carried by the other member andmovable by the keeper as an incident to a closing movement of theclosure, rst and second operators respectively operable from within andwithout the closure for releasing the bolt, means including a singlemanually operable locking member common to said operators and actuableto render both said operators ineiective to release said bolt, and meansactuated by said movement of the bolt by the keeper for restoring saidlocking member to unlocked condition.

2. In a latch for association with a closure member and a cooperatingmember, the combination of a bolt slidably carried by one of the membersand retractably engageable with a keeper carried by the other member,said bolt being movable by the keeper as an incident to a closingmovement of the closure, a retracting member carried by said one of themembers and actuable to release the bolt, rst and second operatorsrespectively operable from Within and without the closure for actuatingthe reti-acting member, means including a single manually operab-lelocking member common to said operators and actuable to render both saidoperators ineffective to retract said retracting member, and meansactuated by said movement of the bolt by the keeper for restoring saidlocking member to unlocked condition 3. In a latch for association witha closure member and a cooperating member and having a casing carried byone of the members, the combination of a bolt slidably supported on saidcasing for movement between a projected and a retracted position, aretracting member actuable to effect a retracting movement of the bolt,inside and outside handle operated means operable to actuate saidretracting member, and means comprising a member projecting from thecasing and common to said bolt and retracting member for guidablysupporting the same on the casing.

4. In a latch for association with a closure member and a cooperatingmember and having a casing carried by one of the members, thecombination of a bolt slidably supported on said casing for movementbetween a projected and a retracted position, a retracting memberactuable to effect a retracting movement of the bolt, inside and outsidehandle operated means operable to actuate said retracting member, a pincommon to said bolt and retracting member for guidably supporting thesame on the casing and having one end secured in the casing, a decksecured secured to the casing in spaced relation thereto for supportingthe other end of the pin, and means comprising a 'locking memberguidably supported between the deck and the casing and movable into aposition to block movement of the retracting member.

' 5. In a latch for association with a closure member and a cooperatingmember and having a casing carried by one of the members, thecombination of a bolt slidably supported on said casing for movementbetween a projected and a retracted position, a retracting memberactuable to effect a retracting movement of the bolt, inside and outsidehandle operated means operable to actuate said retracting member, a pincommon to f said bolt and retracting member for guidably supporting thesame on the casing and having one end secured in the casing, a decksecured to the casing in spaced relation thereto for supporting theother end of the pin, means comprising a ,1,

locking member guidably supported between the deck and the casing andmovable into a position to block movement of the retracting member, andmeans rendering a retracting movement of the bolt effective to .restoresaid locking member to unlocked position.

6. In an automobile door latch, a bolt member, inside and outsideoperators including an inside reciprocating link and an outside rollback arm, means for operatively connecting said inside link and saidoutside roll back arm to said bolt member to enable said link and arm torender the bolt member ineffective to restrain the door, a singlecontrol device normally in a position where it is disconnected from saidmeans but adapted to be moved through a path arranged at right angles tothe rollback axis into a position Where it will operate to preventmovement of said means and thereby prevent the inside link and theoutside roll back arm from so rendering the bolt member ineffective, asingle spring for holding the control device in both of said positions,and means operated by slamming of the door to move the single controldevice into its normal position Where it is disconnected from saidmeans.

7. In a door latch, a bolt, inside and outside operators, a rst memberresponsive to said inside operator and a second member responsive tosaid outside operator, means for operatively connecting said first andsecond members to said bolt to enable said operators, respectively, torender the bolt ineffective to restrain the door, a single controldevice normally in a position in which it is ineffective but adapted tobe moved into a position where it will operate to prevent the saidinside and outside operators from so rendering the bolt ineffective,means for releasably holding the control device in each ofsaidpositions, and means operated by a closing of the door to move thesingle control device into its normal position.

8. In a door latch, a movably mounted bolt, inside and outsideoperators, a rst member responsive to said inside operator and a secondmember responsive to said outside operator, means for operativelyconnecting saidiirst and second members to said bolt to -enable saidoperators, respectively, to render the bolt ineffective to restrain thedoor, a single control device normally in a position in which it isineffective but adapted to be moved into a position Where it willoperate to prevent the said inside and outside operators from sorendering the bolt ineffective, means for releasably holding the controldevice in each of said positions, and means operated by movement of saidboltfor restoring the locking device to its normal position.

ROLLO MARPLE.

